| Patents for H01G 7 - Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture (2,230) |
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| 01/05/1995 | WO1995001079A1 Folded dielectric film element and method for manufacturing the same |
| 01/05/1995 | DE4321289A1 Electret fibres with improved charge stability, manufacture thereof, and textile material containing same |
| 12/07/1994 | EP0608376A4 Voltage variable capacitor. |
| 12/01/1994 | DE4307398A1 Electret fibres having improved charge stability, production thereof and textile material containing these electret fibres |
| 11/30/1994 | EP0626704A1 Apparatus for manufacturing of electrets |
| 11/23/1994 | EP0625282A1 Capacitance humidity sensor |
| 11/09/1994 | EP0623941A2 Polymer electrets with improved charge stability |
| 11/09/1994 | CN1026535C Composition of lead series low-temp sintering relaxation ferroelectric ceramic material and manufacturing process |
| 10/20/1994 | DE4312195A1 Monolithic component with an electrically variable capacitance |
| 10/11/1994 | US5355277 Thin film capacitor |
| 10/05/1994 | EP0618598A1 Improved electrode interface for high-dielectric-constant materials |
| 09/21/1994 | CN1092484A Nonwoven fabric in an electret state and process for its production |
| 09/14/1994 | EP0615007A1 Electret fibers with improved charge stabilisation, process for their production and textile material containing these electret fibers |
| 08/18/1994 | WO1994018242A1 Poromeric material having uniformly distributed electrets |
| 08/09/1994 | US5337207 High-permittivity dielectric capacitor for use in a semiconductor device and process for making the same |
| 08/03/1994 | EP0608376A1 Voltage variable capacitor |
| 07/27/1994 | EP0608162A1 SiO2 electret and its manufacturing process |
| 07/06/1994 | EP0604569A1 Monolithic capacitor with variable capacitance |
| 06/23/1994 | WO1994013471A1 C-axis perovskite thin films grown on silicon dioxide |
| 06/09/1994 | WO1994013028A1 Tunable microwave devices incorporating high temperature superconducting and ferroelectric films |
| 06/09/1994 | CA2150690A1 Tuneable microwave devices incorporating high temperature superconducting and ferroelectric films |
| 06/08/1994 | EP0444022B1 Capacitive coupled moisture sensor and its use |
| 06/07/1994 | US5319518 Solid/gas double layer capacitor and electrical storage device |
| 06/01/1994 | EP0598729A1 Electret feature, method of producing it, and its use in an electro-acoustic transducer. |
| 04/27/1994 | EP0594123A1 Nonwoven fabric in an electret state and process for its production |
| 04/20/1994 | CA2108613A1 Nonwoven fabric in an electret state and process for its production |
| 02/17/1994 | WO1994003908A1 Cubic metal oxide thin film epitaxially grown on silicon |
| 02/03/1994 | WO1994002954A1 Solid/gas double layer capacitor and electrical storage device |
| 01/19/1994 | EP0375781B1 Electret material and process for preparing electret material |
| 01/19/1994 | CN1081016A Composition and preparing process for low-temp. sintered relaxation ferroelectric ceramic material in lead system |
| 01/18/1994 | US5280407 Linearized ferroelectric capacitor |
| 12/29/1993 | EP0575629A1 Antibacterial electret material |
| 12/14/1993 | US5270298 Cubic metal oxide thin film epitaxially grown on silicon |
| 11/23/1993 | US5264983 Monolithic capacitor with variable capacitance |
| 11/18/1993 | DE4215983A1 Electret structure used in telephone receivers - comprising charge-storing dielectric layer having two different regions arranged on substrate |
| 10/26/1993 | US5256176 Thermally stimulated depolarization current having homocharge peak temperature of a tleast 95 degrees and a heterocharge peak of at least 80 degrees |
| 10/26/1993 | CA1323584C Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene) |
| 09/28/1993 | US5248564 Ferroelectric |
| 09/22/1993 | EP0561560A1 Frequency divider with variable capacitance |
| 09/21/1993 | US5246637 Splitting graft polymer into yarns, charging |
| 09/21/1993 | CA2017185C Method of making a variable capacitor microphone |
| 09/19/1993 | CA2091753A1 Frequency divider with variable capacitance |
| 09/08/1993 | EP0386119A4 Microelectrochemical devices and method of detecting |
| 09/06/1993 | WO1993018531A1 Crystallographically aligned ferroelectric films usable in memories and method of making |
| 08/19/1993 | WO1993016481A1 Capacitance humidity sensor |
| 08/19/1993 | CA2128321A1 Capacitance humidity sensor |
| 08/04/1993 | EP0520037A4 Vinylidene cyanide alternating copolymers |
| 07/09/1993 | WO1993014510A1 Antibacterial electret material |
| 06/30/1993 | EP0549200A1 Electret transducer array |
| 06/16/1993 | EP0546325A1 Series ferroelectric capacitor structure for monolithic integrated circuits and method of fabrication |
| 06/10/1993 | WO1993011548A1 Ceramic dielectric materials for high energy storage capacitors |
| 05/25/1993 | US5214300 Monolithic semiconductor integrated circuit ferroelectric memory device |
| 04/29/1993 | WO1993008578A1 Voltage variable capacitor |
| 04/27/1993 | US5206788 Series ferroelectric capacitor structure for monolithic integrated circuits and method |
| 04/01/1993 | WO1993006610A1 Monolithic capacitor with variable capacitance |
| 03/24/1993 | EP0532969A2 Process for fabricating an optical device for generating a second harmonic optical beam |
| 03/10/1993 | EP0530897A2 Process for depositing a ferro-electric Bismuth Titanate layer on a substrate |
| 03/04/1993 | WO1993004495A1 Electret feature, method of producing it, and its use in an electro-acoustic transducer |
| 01/20/1993 | EP0523503A2 Ultra thin polymer film electret and method of manufacturing the same |
| 01/20/1993 | EP0252929B1 Electrically variable piezoelectric hybrid capacitor |
| 01/05/1993 | US5177662 Capacitance humidity sensor |
| 12/30/1992 | EP0520037A1 Vinylidene cyanide alternating copolymers |
| 12/22/1992 | US5173835 Voltage variable capacitor |
| 12/01/1992 | US5168421 Film capacitor and process for producing it |
| 12/01/1992 | US5168420 Ferroelectrics epitaxially grown on superconducting substrates |
| 11/24/1992 | US5166857 Electronically tunable capacitor switch |
| 11/24/1992 | CA1310692C Capacitive coupled moisture sensor |
| 11/19/1992 | EP0513894A2 Method of manufacturing a semiconductor device comprising a capacitor with a ferroelectric dielectric, and semiconductor device comprising such a capacitor |
| 11/11/1992 | EP0512764A2 Method for producing electret filter |
| 11/09/1992 | CA2068020A1 Method of manufacturing a semiconductor device comprising a capacitor with a ferroelectric dielectric, and semiconductor device comprising such a capacitor |
| 11/03/1992 | US5160762 Method of manufacturing mono-layer capacitors |
| 11/03/1992 | CA2067925A1 Method for producing electret filter |
| 10/13/1992 | US5155658 Crystallographically aligned ferroelectric films usable in memories and method of crystallographically aligning perovskite films |
| 09/08/1992 | CA1307330C High voltage through type capacitor and manufacturing method therefor |
| 08/04/1992 | US5136462 Foil with vacuum vapor deposited metal coating |
| 07/08/1992 | EP0493502A1 Capacitance humidity sensor |
| 06/17/1992 | EP0490288A2 Process for fabricating PZT capacitors as integrated circuit memory elements and a capacitor storage element |
| 06/17/1992 | DE4035952C1 Method of measuring temperature of electrical conductors - has electrode forming condenser with capacitance compared to calibration graph |
| 06/02/1992 | CA1302178C Protected solder connection and method |
| 05/26/1992 | US5117206 Variable capacitance integrated circuit usable in temperature compensated oscillators |
| 05/14/1992 | DE4035371A1 Integrated temp. and humidity sensor - comprises resistor-track and capacitive humidity sensor on same substrate in close proximity for improved accuracy |
| 05/12/1992 | US5112677 For air filters, metal particles on polymeric sheet |
| 05/05/1992 | US5110620 Electrification of porous sheet having spaced particles on surface |
| 04/07/1992 | US5101543 Method of making a variable capacitor microphone |
| 02/11/1992 | US5088002 Ceramic electronic component and method of fabricating the same |
| 01/28/1992 | US5084801 Liquid crystal variable capacitor and high intensity discharge lamp ballast employing same |
| 01/15/1992 | CN1057923A Capacitor |
| 01/09/1992 | DE4020467A1 Multiplate capacitor variable by applied voltage - has control electrode in chip form and sintered monolithic block providing dielectric layers of ceramic material |
| 01/07/1992 | US5079200 Solid solution of lead and strontium titanate, ferroelectric infrared imaging |
| 12/18/1991 | EP0169241B1 Method for forming hermetically sealed electrical feedthrough conductors |
| 12/04/1991 | EP0459575A2 Process of making a film capacitor |
| 11/28/1991 | WO1991018406A1 Miniature monolithic multilayered capacitors and methods for trimming |
| 11/13/1991 | EP0444022A4 Capacitive coupled moisture sensor |
| 11/12/1991 | CA1291905C Electronic device fabrication on non-conductive polymer substrate |
| 11/05/1991 | US5063418 Optical non-linear artificial dielectrics |
| 10/29/1991 | US5061760 Vinylidene cyanide alternating copolymers exhibiting nonlinear optical and piezoelectric properties |
| 10/16/1991 | EP0452165A2 Flexible metallized dielectric film capacitor and method of making such a capacitor |
| 10/15/1991 | US5057710 Electret materials and the method for preparing the electret materials |
| 10/15/1991 | US5057588 Vinylidene cyanide alternating copolymers |
| 10/09/1991 | EP0450455A2 Foil with vacuum evaporated segmented metallic deposit and self-healing capacitor produced by means of this foil |